Overview
The TEA1611T/N2,518, produced by NXP USA Inc., is a monolithic integrated circuit designed for zero-voltage switching resonant converters. It is implemented in a high voltage Diffusion Metal Oxide Semiconductor (DMOS) process, making it suitable for high voltage applications. This IC provides the drive function for two discrete power MOSFETs in a half-bridge configuration and includes various features such as a level-shift circuit, an oscillator with an accurately programmable frequency range, and a transconductance error amplifier. The TEA1611T is highly flexible and supports a broad range of applications, particularly in high voltage power supplies and consumer electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SO20 (plastic small outline package; 20 leads; body width 7.5 mm) | - |
| Supply Voltage Range | Up to 20 V | V |
| Start-up Current | 210 - 310 µA | µA |
| Operating Current | Up to 2.4 mA | mA |
| Shut-down Current | 220 - 270 µA | µA |
| Reset Voltage | 4.5 - 6.0 V | V |
| Reference Voltage | 2.9 - 3.0 V | V |
| Non-overlap Time | 0.58 - 0.68 µs | µs |
| High Side Driver Source Current | Up to 300 mA | mA |
Key Features
- Integrated high voltage level-shift function
- Integrated high voltage bootstrap diode
- Low start-up current (green function)
- Adjustable non-overlap time
- Internal OverTemperature Protection (OTP)
- OverCurrent Protection (OCP) with shut-down timer
- Soft start timing pin
- Transconductance error amplifier for ultra high-ohmic regulation feedback
- Latched shut-down circuit for OverVoltage Protection (OVP)
- Adjustable minimum and maximum frequencies
- UnderVoltage LockOut (UVLO)
- Fault latch reset input
Applications
- TV and monitor power supplies
- High voltage power supplies
Q & A
- What is the TEA1611T/N2,518 used for? The TEA1611T/N2,518 is used as a controller for zero-voltage switching resonant converters, particularly in high voltage applications such as TV and monitor power supplies.
- What is the package type of the TEA1611T/N2,518? The TEA1611T/N2,518 comes in a SO20 (plastic small outline package; 20 leads; body width 7.5 mm).
- What is the supply voltage range of the TEA1611T/N2,518? The supply voltage range is up to 20 V.
- Does the TEA1611T/N2,518 have overcurrent protection? Yes, it includes OverCurrent Protection (OCP) that activates a shut-down timer.
- What is the purpose of the transconductance error amplifier in the TEA1611T/N2,518? The transconductance error amplifier is used for ultra high-ohmic regulation feedback.
- Can the TEA1611T/N2,518 be used in high temperature environments? The IC includes Internal OverTemperature Protection (OTP) to ensure safe operation.
- How does the TEA1611T/N2,518 handle voltage overloads? It includes a latched shut-down circuit for OverVoltage Protection (OVP).
- Is the TEA1611T/N2,518 energy-efficient during start-up? Yes, it has a low start-up current (green function).
- Can the non-overlap time be adjusted in the TEA1611T/N2,518? Yes, the non-overlap time is adjustable.
- What is the role of the soft start timing pin in the TEA1611T/N2,518? The soft start timing pin helps in gradual power-up to prevent inrush currents.
- How does the TEA1611T/N2,518 reset after a fault? It includes a fault latch reset input for resetting after a fault condition.
